Cultivating implement.



R. A. MINTERN.

CULTIVATING IMPLEMENT. APPLICATION FILED SEPT-28. i916.

Patented Apr. 3, 1917.

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R. A. MINTERN. cuuwmme IMPLEMENT.

APPLICATION FILED SEPT-28, I9I6.

Patented Apr. 3, 191?.

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RICHARD ALBERT MINTERN, OF HORSI-IAM, VICTORIA, AUSTRALIA.

CULTIVATING IMPLEMENT.

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Specification of Letters Patent.

Patented Apr. 3, 1917.

Application filed. September 28, 1916. Serial No. 122,662.

To all whom it may concern.

Be it known that I, RICHARD ALBERT MIN- TERN, a subject of the King of Great Britain, residing in lVilson street, Horsham, in the State of Victoria, Commonwealth of Australia, have invented new and useful Improvements in Cultivating Implements, of which the following is a specification.

This invention relates to improvements in cultivating implements and it has been devised in order to provide an implement which will be essentially suitable for surface cultivation and on land reasonably free from obstructions.

The invention, furthermore, embodies certain novel features. of construction and arrangements of parts which serve to make the cultivator economical and highly eflicient in use.

In order that the invention may be more readily understood reference will now be had to the accompanying sheets of explanatory drawings wherein Figure 1 is a view in side elevation of a cultivating implement constructed in accordance with the invention and showing the off side transport wheel removed.

Fig. 2 is a view in plan of Fig. 1 and shows part of the implement removed for convenience of illustration.

Fig. 3 is a view in front elevation of Fig. 2.

Fig. 4 is a view in sectional front elevation of part of the implement frame taken on the dotted line aa Fig. 2.

Fig. 5 is a view in plan of part of the frame of the cultivating implement and hereinafter is fully described.

In the drawings like characters of reference have been employed to indicate similar or corresponding parts in the different views and the numeral 1 designates a stout axle beam of angle iron the ends of which are fitted with cranked stub axles 2 on which are mounted high transport wheels 3. The stud axles 2 are secured removably to the ends of the beam 1 by means of collars 4: and bolts 5 or the like means. A frame 6 made of light angle iron and reinforcing bars 6 of the same material is pivotally mounted on a rod 1 which is supported in jaws 6 fitted to the stout beam 1 at suitable points.

The central part of the axle beam 1 is furnished with a forwardly projectin beam 7 formed of one stout or two light ang e iron bars and to the forward end of said beam is fitted a casting 8 having a vertical boss 9 for accommodating the post 10 of steering wheels 11 of approved form. The axle beam 1 and the forwardly extending beam 7 form a rigid T-shaped frame for supporting the operative parts of the implement. In. lieu A tain the outer end of frame 6 in correct relation to the beam 7 and to permit of the forward part of the said frame 6 being raised and lowered as desired. The guide 15 is provided with stays 16 which insure rigidity to the structure under all ordinary working stresses.

A quadrant 17 is fitted to the beam 7 and abolt 18 passing through the forward leg of said quadrant pivotally supports a lever 19. The forward end of the lever 19 is connected by a link 20 to the forward part of the frame 6 and by operating said lever the forward end of said frame 6 can be raised and lowered as and when required.

The lever 19 is furnished with a hand operated pawl 21 which is adapted to engage with the teeth of the quadrant 17.

The ends of the front bar of the frame 6 are fitted with depending brackets 22 which are designed to support the ends of abar 23.

The forward ends of yoke-shaped sections 2 1- are pivotally mounted on the bar 28 and to the said sections are clamped a plurality of tines 25 furnished with an approved form of share 26. The tines can be of the rigid type shown in Figs. 1, 2 and 3 (in dotted lines) or of the spring type if desired.

The tines are set in a zig-zag line, so as to insure wide spaces therebetween to provide for the free passage of weeds and other rubbish through the implement when the same is in operation.

A tine 25 is fitted to the bar 28 at the right hand side of each section 24: and those tines constitute the forward row and are connected to the sections by suitable sides and rear ends of each of the sections 24 and tines forming a third row. are clamped to rearward extensions 24 disposed centrally on the said section.

It will be obvious that tines of various descriptions can be fitted to the sections and connected thereto in different ways and if preferred disks can be fitted to the sections of the cultivator and arranged in any approved way. The sections 24: can work separately or they can be made to work together by connecting their ends with rigid straps 24E (see Fig. 5).-

Two or more standards 27 are fitted near to the back of the frame 6 and a transverse rod 28 is mounted in bosses formed on the upper ends of said standards. A. lever 29 is fitted rigidly to the rod 28 and projects upwardly therefrom at an approved angle.

An arm 30 projects rearwardly from the transverse rod 28 above the center of ,each section 24 and a link 31 connects the outer end of said arm to the section directly beneath. The lever 29 is provided with a hand operated pawl 32 which is adapted to be engaged by the teeth of a quadrant 33 fitted to the frame 6.

The lever 29 is operated to raise and lower the back ends of the sections 24: as desired and to facilitatethe raising operation a strong tension spring 34L is arranged to exert a constant forward pull on the lever (see Fig. 1 of the drawings).

The lever 19 is also fitted with a com pensating spring 35 and is operated to raise and lower the front end of the frame 6 and'the corresponding ends of the sections 24-.

The beam 1 is provided with a detachable seat 37 for the driver and the operating levers 19 and 29 are placed so as to be grasped'conveniently by the driver when seated thereon.

The forward end of the beam 7 is adjusted on the post 10 of'the steering wheels 11 by moving a collar 41 on said post to the position desired and then clamping it firmly by means of a set-screw 4E2.

A casting 4:3 is fitted to the top of the post 10 and secured adjustably within a boss 44: on said casting is one end of a bar 5. The said bar 45 is bent downwardly and has its opposite end secured by a bolt to. arms 46 projecting forwardly from the center of the boss surrounding the axle 47 carrying the steering wheels 11.

Diagonally disposed hauling bars 48 are secured to the beam 1 at their rear ends and their forward ends are connected to links 4-9 which pass forwardly and embrace the bar 45. A hook 50 is fitted to the forward end of the links 49 to engage the swingle tree to which the draft animals are coupled.

The levers 19 and 29 are fitted with detachable handles 52 which are removed and replaced with longer handles 53 when the implement is used in combination with a seed-drill, the object of which will be apparent to those skilled in the art.

hat I do claim is:

1. A cultivating implement having a rigid T-shaped frame, a frame pivotally supported from said T-frame for supporting cultivating means, means for adjusting the free end of said pivoted frame with respect to said T-frame, a guide member carried by said pivoted frame and embracing the longitudinally extending part of said T-frame for bracing said pivoted frame against lateral stresses, and braces extending from the top of said guide to the sides of said pivoted frame at its free end.

2. A cultivating implement having a rigid T-shaped frame, a frame pivotally supported from said T-frame for supporting cultivating means, means for adjusting the free end of said pivoted frame with respect to said T-frame, a guide member carried by said pivoted frame and embrac ing the longitudinally extending part of said T-frame for bracing said pivoted frame against lateral stresses, said T-frame having a relatively wide cross part between the wheels and said pivoted frame being of substantially the same width as the T-framc whereby a large area may be cultivated at one passage of the implement, and a strap T fixed to the top of said guide member,

the ends of which extend to the outer sides of said pivoted frame at its free ends and are fixed thereto, thereby forming braces for the pivoted frame.

In testimony whereof I aflix my signature in presence of two witnesses.

RICHARD ALBERT MINTERN. Witnesses:

JAMES H. ANDERSON, MARGARET RossmER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0." 

